Let me know down below in the comments or over in the official Draftsim Discord
I discuss the pros and cons of such random rarity in that post, including a poll that asked readers if they liked the idea of 5 random products have something super special (golden ticket items) inside the box, and you have a chance at getting one of them if youre a backer. 80% or readers emphatically did not like the idea
Walk-In Closet // Forgotten Cellar might be the more straightforward playable room card: You just cast the 3-mana green enchantment first, and later when you have a filled graveyard, you get to unlock Forgotten Cellar and profit
But it's better as it also generates a token if you attack with a Goblin, with itself also being a Goblin for this trigger
And then, check out the other stuff I do on my website, including a ton of other Magic -related projects
Its not a strong signpost